/* Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.activiti.rest.service.api.management;

import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiParam;
import io.swagger.annotations.ApiResponse;
import io.swagger.annotations.ApiResponses;
import io.swagger.annotations.Authorization;

import org.activiti.engine.ActivitiObjectNotFoundException;
import org.activiti.engine.ManagementService;
import org.activiti.engine.management.TableMetaData;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;

/**

 */
@RestController
@Api(tags = { "Database tables" }, description = "Manage Database tables", authorizations = { @Authorization(value = "basicAuth") })
public class TableColumnsResource {

  @Autowired
  protected ManagementService managementService;

  @ApiOperation(value = "Get column info for a single table", tags = {"Database tables"})
  @ApiResponses(value = {
      @ApiResponse(code = 200, message = "Indicates the table exists and the table column info is returned."),
      @ApiResponse(code = 404, message = "Indicates the requested table does not exist.")
  })
  @RequestMapping(value = "/management/tables/{tableName}/columns", method = RequestMethod.GET, produces = "application/json")
  public TableMetaData getTableMetaData(@ApiParam(name = "tableName", value="The name of the table to get.") @PathVariable String tableName) {
    TableMetaData response = managementService.getTableMetaData(tableName);

    if (response == null) {
      throw new ActivitiObjectNotFoundException("Could not find a table with name '" + tableName + "'.", String.class);
    }
    return response;
  }
}
